<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUsersList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUsersList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addUserVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template #default="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStataChange(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template #default="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top">
              <el-button
                type="danger"
                icon="el-icon-s-tools"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
            <el-button
              type="warning"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 3, 4]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框区域 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addUserVisible"
      width="50%"
      @close="resetForm"
    >
      <!-- 添加用户内容区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addUserVisible = false">取 消</el-button>
        <el-button type="primary" @click="sendUserForm">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 编辑用户 对话框区域 -->
    <el-dialog title="编辑用户" :visible.sync="editDialogVisible" width="50%">
      <!-- 编辑用户 内容区域 -->
      <el-form
        :model="editForm"
        :rules="addFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoledialogVisible"
      width="50%"
      close="resetSelect"
    >
      <div>
        <P>用户名称：{{ userInfo.username }}</P>
        <P>角色名称：{{ userInfo.role_name }}</P>
        <div>
          <span>分配新角色：</span>
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </div>
      </div>

      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoledialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="sendSelectRole">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      //验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        //合法的邮箱
        return cb();
      }
      cb(new Error("请输入合法邮箱"));
    };

    //验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      //验证手机号的正则表达式
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法手机号"));
    };

    return {
      //获取用户列表参数对象
      queryInfo: {
        query: "",
        pagenum: 1, //当前页数
        pagesize: 2, //当前每页显示多少条数据
      },
      userList: [],
      total: 0,
      addUserVisible: false, //控制添加用户对话框显示与隐藏
      editDialogVisible: false, //控制编辑用户对话框显示与隐藏
      setRoledialogVisible: false, //分配角色对话框显示与隐藏
      //添加用户表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },

      //编辑用户 表单数据
      editForm: {},

      //当前用户信息
      userInfo: {},

      //角色列表信息
      rolesList: [],

      //当前选中角色id

      selectRoleId: "",

      //添加用户表单验证规则
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名长度在3~10个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "用户名长度在6~15个字符",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getUsersList();
  },
  methods: {
    //获取用户信息
    async getUsersList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) return this.$message.err("获取用户列表失败");
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    //监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUsersList();
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUsersList();
    },
    //监听 swich 开关状态
    async userStataChange(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("更新状态失败");
      }
      this.$message.success("更新状态成功");
    },

    //添加用户对话框关闭重置表单
    resetForm() {
      this.$refs.addFormRef.resetFields();
    },

    //将新增用户发送到后台
    sendUserForm() {
      //发送前的预验证
      this.$refs.addFormRef.validate(async (valid) => {
        //如果验证失败，此次不向后台发送请求
        if (!valid) return this.$message.error("请输入正确格式后重试");
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) return this.$message.error("添加用户失败");
        this.$message.success("已添加新用户");
        //通过后关闭对话框
        this.addUserVisible = false;
        //添加新用户后更新表单
        this.getUsersList();
      });
    },
    //展示编辑用户对话框
    async showEditDialog(editUserId) {
      this.editDialogVisible = true;
      const { data: res } = await this.$http.get("users/" + editUserId);
      if (res.meta.status !== 200) return this.$message.error("请重试");
      this.editForm = res.data;
    },

    //编辑用户对话框关闭 重置移除验证
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    //编辑用户信息提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        //如果验证失败，此次不向后台发送请求
        if (!valid) return this.$message.error("请输入正确格式后重试");
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          this.editForm
        );
        if (res.meta.status !== 200) return this.$message.error("编辑用户失败");
        this.$message.success("用户信息编辑成功");
        //通过后关闭对话框
        this.editDialogVisible = false;
        //添加新用户后更新表单
        this.getUsersList();
      });
    },
    //根据id删除对应用户
    async removeUserById(removeId) {
      //询问用户是否删除数据
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户，是否继续？",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);

      //如果用户点击确认，则返回字符串confirm，用户点击取消则返回cancel
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }

      const { data: res } = await this.$http.delete("users/" + removeId);

      if (res.meta.status !== 200) return this.$message.warning("删除失败");
      this.$message.success("删除成功");
      this.getUsersList();
    },

    //展示分配角色对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;
      //获取所有角色列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色失败");
      }
      this.rolesList = res.data;
      console.log(this.rolesList);

      this.setRoledialogVisible = true;
    },
    //点击确定 修改用户角色
    async sendSelectRole() {
      //发送请求前 判断用户是否选择了角色
      if (!this.selectRoleId) {
        return this.$message.info("请选择角色");
      }

      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectRoleId,
        }
      );
      if (res.meta.status !== 200) {
        return this.$message.error("修改用户角色失败");
      }
      this.$message.success("修改用户角色成功");
      this.getUsersList();
      this.setRoledialogVisible = false;
    },

    //监听分配角色对话框关闭事件，重置select
    resetSelect() {
      this.selectRoleId = "";
      this.userInfo = {};
    },
  },
};
</script>

<style lang="less" scoped>
</style>